From cebce2a93adb1c24c3ff14c62f9c052d93886707 Mon Sep 17 00:00:00 2001 From: bunnei Date: Tue, 23 Oct 2018 18:52:01 -0400 Subject: [PATCH] ldr: Partially implement LoadNro. - This is an incomplete implementation. It was tested with Super Mario Party. --- src/core/hle/service/ldr/ldr.cpp | 52 ++++++++++++++++++++++++++++++-- 1 file changed, 49 insertions(+), 3 deletions(-) diff --git a/src/core/hle/service/ldr/ldr.cpp b/src/core/hle/service/ldr/ldr.cpp index ec32faf15..d607d985e 100644 --- a/src/core/hle/service/ldr/ldr.cpp +++ b/src/core/hle/service/ldr/ldr.cpp @@ -3,9 +3,13 @@ // Refer to the license.txt file included. #include +#include +#include "core/hle/ipc_helpers.h" +#include "core/hle/kernel/process.h" #include "core/hle/service/ldr/ldr.h" #include "core/hle/service/service.h" +#include "core/loader/nro.h" namespace Service::LDR { @@ -59,16 +63,58 @@ public: explicit RelocatableObject() : ServiceFramework{"ldr:ro"} { // clang-format off static const FunctionInfo functions[] = { - {0, nullptr, "LoadNro"}, + {0, &RelocatableObject::LoadNro, "LoadNro"}, {1, nullptr, "UnloadNro"}, - {2, nullptr, "LoadNrr"}, + {2, &RelocatableObject::LoadNrr, "LoadNrr"}, {3, nullptr, "UnloadNrr"}, - {4, nullptr, "Initialize"}, + {4, &RelocatableObject::Initialize, "Initialize"}, }; // clang-format on RegisterHandlers(functions); } + + void LoadNrr(Kernel::HLERequestContext& ctx) { + IPC::ResponseBuilder rb{ctx, 2}; + rb.Push(RESULT_SUCCESS); + LOG_WARNING(Service_LDR, "(STUBBED) called"); + } + + void LoadNro(Kernel::HLERequestContext& ctx) { + IPC::RequestParser rp{ctx}; + rp.Skip(2, false); + const VAddr nro_addr{rp.Pop()}; + const u64 nro_size{rp.Pop()}; + const VAddr bss_addr{rp.Pop()}; + const u64 bss_size{rp.Pop()}; + + // Read NRO data from memory + std::vector nro_data(nro_size); + Memory::ReadBlock(nro_addr, nro_data.data(), nro_size); + + // Load NRO as new executable module + const VAddr addr{*Core::CurrentProcess()->VMManager().FindFreeRegion(nro_size + bss_size)}; + Loader::AppLoader_NRO::LoadNro(nro_data, fmt::format("nro-{:08x}", addr), addr); + + // TODO(bunnei): This is an incomplete implementation. It was tested with Super Mario Party. + // It is currently missing: + // - Signature checks with LoadNRR + // - Checking if a module has already been loaded + // - Using/validating BSS, etc. params (these are used from NRO header instead) + // - Error checking + // - ...Probably other things + + IPC::ResponseBuilder rb{ctx, 4}; + rb.Push(RESULT_SUCCESS); + rb.Push(addr); + LOG_WARNING(Service_LDR, "(STUBBED) called"); + } + + void Initialize(Kernel::HLERequestContext& ctx) { + IPC::ResponseBuilder rb{ctx, 2}; + rb.Push(RESULT_SUCCESS); + LOG_WARNING(Service_LDR, "(STUBBED) called"); + } }; void InstallInterfaces(SM::ServiceManager& sm) {